CN103467044B

CN103467044B - A kind of tile grout of low alkalinity

Info

Publication number: CN103467044B
Application number: CN201310369104.5A
Authority: CN
Inventors: 林德; 林德成; 应武; 张洲会; 盛嘉禾; 张志刚; 方乐
Original assignee: DEQING YANGTAI BUILDING MATERIAL Co Ltd
Current assignee: DEQING YANGTAI BUILDING MATERIAL Co Ltd
Priority date: 2013-08-22
Filing date: 2013-08-22
Publication date: 2015-09-16
Anticipated expiration: 2033-08-22
Also published as: CN103467044A

Abstract

The invention belongs to building material field, be specifically related to a kind of tile grout of low alkalinity.The invention discloses a kind of tile grout of low alkalinity, be made up of following component and mass percent: cement: 20%-50% quartz sand: 20%-50% dicalcium powder: 0.01%-35% redispersable latex powder: 0.01%-1.0% organosilicon powder: 0.01%-0.2% ether of cellulose: 0.01%-0.05% pigment: 0.01%-8% retardant: 0.01%-0.1% citric acid: 0.01%-0.05% the present invention is water-fast, can not ftracture, ageing-resistant performance is good, there is excellent flexility, bond firmly with basic unit, quick-drying is hard soon, the generation of accumulation of salt in the surface soil situation after wet environment or cold snap construction can be avoided.

Description

A kind of tile grout of low alkalinity

Technical field

The invention belongs to building material field, be specifically related to a kind of tile grout of low alkalinity.

Background technology

Current at building industry high speed development, during tackiness agent is widely used in building brick material stickup on, the stickup of brick material needs to coordinate spackling.Because tackiness agent and spackling itself are containing water soluble alkali, salt etc., when rainwater infiltrates in material, these soluble ingredient can be dissolved in the water, infiltrate brick material pore and joint filling not crucial point, form water channel and ooze out surface, contact with the CO2 in air, acid rain etc. again, generate undissolved white thing and the accumulation of salt in the surface soil.

It is attractive in appearance that the accumulation of salt in the surface soil can affect buildings, gives unsafe sensation; The accumulation of salt in the surface soil can affect and whitewash quality, delamination easily occurs and makes finishing failure; The accumulation of salt in the surface soil can cause structure crack, makes textural anomaly dilatation fissure; The common mould of the accumulation of salt in the surface soil has head mold, Mucor, aspergillus and mould etc., easily causes tetter and respiratory tract disease, even may bring out cancer.

Therefore, a kind of spackling of low alkalinity is needed to suppress the generation of this phenomenon.

Summary of the invention

The object of the invention is to solve above-described technical problem, provide a kind of tile grout of low alkalinity, its technical scheme is as follows:

A tile grout for low alkalinity, is characterized in that, is made up of following component and mass percent:

Cement 20%-50%

Quartz sand 20%-50%

Dicalcium powder 0.01%-35%

Redispersable latex powder 0.01%-1.0%

Organosilicon powder 0.01%-0.2%

Ether of cellulose 0.01%-0.05%

Pigment 0.01%-8%

Retardant 0.01%-0.1%

Citric acid 0.01%-0.05%

Optimal way is, described cement is low-alkalinity sulphoaluminate cement.

Optimal way is, described quartz sand is particle diameter 70-140 object quartz sand.

Optimal way is, described redispersable latex powder is vinyl acetate and ethylene copolymer rubber powder.

Optimal way is, described ether of cellulose is ethoxyl methyl cellulose ether or hydroxypropyl methyl cellulose ether.

Optimal way is, described retardant is carboxylate group organism.

In starting material of the present invention, cement plays cohesive action; In quartz sand, silicone content is not less than 98%, and intensity is high, wear resisting property good; Dicalcium powder can increase toughness and the intensity of product; Redispersable latex powder has outstanding cohesive strength, can improve the flexibility of product, and gives excellent alkali resistance; Organosilicon powder has good water resistance; Ether of cellulose makes the moisture in mortar not easily lose, and progressively discharges within long period of time, gives the good water-retentivity of mortar and workability; Retardant effectively can extend the operable time of mortar; Citric acid effectively can suppress the generation of accumulation of salt in the surface soil phenomenon.

The raw-material feeding sequence of the present invention, first coordinates mixed additive by the order of dicalcium powder-redispersable latex powder-organosilicon powder-ether of cellulose-pigment-retardant-citric acid.Aborning, first add cement 50%, then add quartz sand 50%, then add mixed additive 50%, after slightly mixing, add residue 50% material more in this order.

The present invention is water-fast, can not ftracture, ageing-resistant performance is good, has excellent flexility, bonds firmly with basic unit, and quick-drying is hard soon, can avoid the generation of accumulation of salt in the surface soil situation after wet environment or cold snap construction.

Embodiment

Illustrate embodiment below:

Embodiment one:

Cement 20%

Quartz sand 50%

Dicalcium powder 21%

Redispersable latex powder 1.0%

Organosilicon powder 0.2%

Ether of cellulose 0.05%

Pigment 7.6%

Retardant 0.1%

Citric acid 0.05%.

Embodiment two:

Cement 50%

Quartz sand 20%

Dicalcium powder 24%

Redispersable latex powder 0.5%

Organosilicon powder 0.2%

Ether of cellulose 0.05%

Pigment 5.1%

Retardant 0.1%

Citric acid 0.05%.

Claims

1. a tile grout for low alkalinity, is characterized in that, is made up of following component and mass percent:

Cement 20%-50%;

Quartz sand 20%-50%;

Dicalcium powder 0.01%-35%;

Redispersable latex powder 0.01%-1.0%;

Organosilicon powder 0.01%-0.2%;

Ether of cellulose 0.01%-0.05%;

Pigment 0.01%-8%;

Retardant 0.01%-0.1%;

Citric acid 0.01%-0.05%, first coordinate mixed additive by the order of dicalcium powder-redispersable latex powder-organosilicon powder-ether of cellulose-pigment-retardant-citric acid, aborning, first add cement 50%, add quartz sand 50% again, add mixed additive 50% again, after slightly mixing, add residue 50% material more in this order.

2. the tile grout of low alkalinity as claimed in claim 1, it is characterized in that, described cement is low-alkalinity sulphoaluminate cement.

3. the tile grout of low alkalinity as claimed in claim 1, it is characterized in that, described quartz sand is particle diameter 70-140 object quartz sand.

4. the tile grout of low alkalinity as claimed in claim 1, it is characterized in that, described redispersable latex powder is vinyl acetate and ethylene copolymer rubber powder.

5. the tile grout of low alkalinity as claimed in claim 1, it is characterized in that, described ether of cellulose is ethoxyl methyl cellulose ether or hydroxypropyl methyl cellulose ether.

6. the tile grout of low alkalinity as claimed in claim 1, it is characterized in that, described retardant is carboxylate group organism.